I used to consider myself to be relatively knowledgeable when it comes to coffee. After all, I drink it every day, nearly at Lorelai Gilmore levels. I know what I like, I know how to make it, I know what to order, the whole bit. I, too, like my coffee with my oxygen.

But after a phone call with Eric Lorance, Cumberland Farms’ in-house coffee expert, while doing research for an upcoming story all about coffee, I’ve discovered that there is so much I’ve gotten wrong. It made me wonder: how many other people are assuming the same (incorrect) things about coffee? I couldn’t wait until the full article was published to share my findings. So now I present to you five things you thought you knew about coffee—and what’s really true.